JPH0244266B2 - - Google Patents
Info
- Publication number
- JPH0244266B2 JPH0244266B2 JP60188003A JP18800385A JPH0244266B2 JP H0244266 B2 JPH0244266 B2 JP H0244266B2 JP 60188003 A JP60188003 A JP 60188003A JP 18800385 A JP18800385 A JP 18800385A JP H0244266 B2 JPH0244266 B2 JP H0244266B2
- Authority
- JP
- Japan
- Prior art keywords
- heat storage
- base material
- phase transition
- latent heat
- capsule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005338 heat storage Methods 0.000 claims description 72
- 239000011232 storage material Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 26
- 239000002775 capsule Substances 0.000 claims description 23
- 239000004566 building material Substances 0.000 claims description 22
- 230000007704 transition Effects 0.000 claims description 18
- 229920005992 thermoplastic resin Polymers 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000012071 phase Substances 0.000 description 10
- 239000007790 solid phase Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 pentyl glycol Chemical compound 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
【発明の詳細な説明】
〔技術分野〕
この発明は、住宅等に用いられる建材であつて
蓄熱構造部分を構成するものとしても用いられる
蓄熱建材に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a heat storage building material that is used for houses and the like and is also used as a component of a heat storage structure.
住宅における快適性、省エネルギー性を考える
場合、太陽熱をうまく貯えて必要なときに取り出
すようにする蓄熱の技術は、極めて重要な課題と
なる。
When considering the comfort and energy efficiency of homes, heat storage technology that effectively stores solar heat and extracts it when needed is an extremely important issue.
従来、部屋の開口部や床に、コンクリートや水
などの顕熱蓄熱材、あるいは、無機水和塩やパラ
フインなどの潜熱蓄熱材を用いた蓄熱構造を採用
したものがある。これらの中でも、特に、単位量
あたりの熱容量が大きいという点で、潜熱蓄熱材
が注目されている。潜熱蓄熱材については、接触
面積増加や相分離防止を目的としてこれを耐透水
層でコーテイングしてカプセル化し、このカプセ
ル化した潜熱蓄熱材を石コウやセメントなどの基
材中に分散して、蓄熱効果の大きい建材を作るこ
とが種々検討されている。 Conventionally, some rooms have a heat storage structure that uses sensible heat storage materials such as concrete or water, or latent heat storage materials such as inorganic hydrated salt or paraffin, in the openings and floors of rooms. Among these materials, latent heat storage materials are attracting particular attention because of their large heat capacity per unit amount. The latent heat storage material is encapsulated by coating it with a water-resistant layer to increase the contact area and prevent phase separation, and the encapsulated latent heat storage material is dispersed in a base material such as plaster or cement. Various efforts are being made to create building materials that have a large heat storage effect.
しかしながら、潜熱蓄熱材については、以下の
ような問題があつた。すなわち、このものは、熱
によつて相転移が起きる。すなわち、固相転移や
固相・液相間での相転移（変態）が起きる。この
相転移にともない体積変化が起こる。その膨張率
は、無機水和塩型のもので約５〜10％、パラフイ
ン系で10〜20％にもなる。そのため、これらの蓄
熱カプセルを基材に分散させて蓄熱建材を作つた
場合、太陽熱等の蓄熱による潜熱蓄熱材の膨張、
放出による収縮が周囲の基材に作用して、第３図
ａ，ｂにみるように、建材がそつたり、たわんだ
りし、さらには、クラツクが生じるという問題で
ある。上記の作用に伴う影響は、潜熱蓄熱材の膨
張時の方がより大きく、深刻である。図中、Ｃ，
C′は蓄熱建材、Ｄ，D′は蓄熱カプセルである。 However, the latent heat storage material has the following problems. That is, this material undergoes a phase transition due to heat. That is, solid phase transition or phase transition (transformation) between solid phase and liquid phase occurs. This phase transition causes a volume change. The expansion rate is about 5 to 10% for inorganic hydrated salt types and 10 to 20% for paraffin types. Therefore, when these heat storage capsules are dispersed in a base material to make a heat storage building material, the expansion of the latent heat storage material due to the storage of solar heat, etc.
The problem is that the contraction caused by the release acts on the surrounding base materials, causing the building materials to warp or sag, and even cause cracks, as shown in FIGS. 3a and 3b. The effects associated with the above action are greater and more serious when the latent heat storage material expands. In the figure, C,
C' is a heat storage building material, and D and D' are heat storage capsules.
〔発明の目的〕
この発明は、このような現状に鑑みて、潜熱蓄
熱材の膨張によつて、そり、たわみ、クラツク等
の生じることのない蓄熱建材の製法を提供するこ
とを目的としている。[Object of the Invention] In view of the current state of the art, it is an object of the present invention to provide a method for manufacturing a heat storage building material that does not cause warping, deflection, cracking, etc. due to the expansion of the latent heat storage material.
この発明は、このような目的を達成するため
に、蓄熱カプセルが基材中に分散されてなり、こ
の蓄熱カプセルは相転移にともなう潜熱を利用す
る潜熱蓄熱材が熱可塑性樹脂で被覆されてなるも
のである蓄熱建材を得るにあたり、前記基材の硬
化に至るまでの系において、少なくとも硬化時の
系の温度を前記潜熱蓄熱材の相転移温度以上に保
持することを特徴とする蓄熱建材の製法を要旨と
する。
In order to achieve such an object, the present invention comprises a heat storage capsule dispersed in a base material, and the heat storage capsule is made of a latent heat storage material that utilizes latent heat accompanying phase transition and is coated with a thermoplastic resin. A method for producing a heat storage building material, characterized in that the temperature of the system up to the curing of the base material is maintained at least at the phase transition temperature of the latent heat storage material at the time of curing. The gist is:
以下に、この発明を、その１実施例を表す図面
に基づいて詳しく説明する。 The present invention will be explained in detail below based on the drawings showing one embodiment thereof.
第１図ａ，ｂにみるように、この発明にかかる
製法で作られた蓄熱建材Ａは、蓄熱カプセルＢが
基材３中に分散されてなる。そして、蓄熱カプセ
ルＢは、潜熱蓄熱材２を、基材３および蓄熱材２
の少なくとも一方に付着しにくい熱可塑性樹脂に
よつてカプセル化したものである。この発明によ
れば、この蓄熱建材Ａは、つぎのようにして作ら
れる。すなわち、蓄熱カプセルＢを潜熱蓄熱材２
の相転移温度以上に保持し、蓄熱カプセルＢを膨
張させる。ここに、相転移温度以上とは、固相転
移型潜熱蓄熱材では固相転移温度以上のことであ
り、固液変態型潜熱蓄熱材では融点以上のことで
ある。この膨張した蓄熱カプセルB′を基材３の
中に分散させて基材３を成型硬化させると、蓄熱
建材Ａができあがる。この成型硬化に至までの系
は、常に相転移温度以上の温度に保持されてい
る。すなわち、蓄熱カプセルＢは、膨張した状態
（蓄熱状態）の蓄熱カプセルB′のままで成型硬化
する基材なに分散されるのである。 As shown in FIGS. 1a and 1b, the heat storage building material A produced by the manufacturing method according to the present invention has heat storage capsules B dispersed in the base material 3. Then, the heat storage capsule B stores the latent heat storage material 2 into the base material 3 and the heat storage material 2.
The thermoplastic resin is encapsulated with a thermoplastic resin that does not easily adhere to at least one of the two. According to this invention, the heat storage building material A is produced as follows. That is, the heat storage capsule B is used as the latent heat storage material 2.
is maintained at a temperature higher than the phase transition temperature of , and the heat storage capsule B is expanded. Here, the term "above the phase transition temperature" means above the solid phase transition temperature in the case of a solid phase transition type latent heat storage material, and above the melting point in the case of a solid phase transformation type latent heat storage material. When the expanded heat storage capsules B' are dispersed in the base material 3 and the base material 3 is molded and hardened, the heat storage building material A is completed. The system up to this mold hardening is always maintained at a temperature above the phase transition temperature. That is, the heat storage capsule B is dispersed in the base material which is molded and hardened while the heat storage capsule B' is in an expanded state (heat storage state).
この実施例では、前述のように、熱可塑性樹脂
は、蓄熱材２および基材３の少なくとも一方に付
着しにくく（「付着しない」を含む）ものが用い
られており、そのため、潜熱蓄熱材が収縮（放
熱）した場合、たとえば、第２図ａのように、蓄
熱材２とともに熱可塑性樹脂のカプセル１が収縮
して、基材３との間に空隙４が形成されたり、第
２図ｂにみるように、熱可塑性樹脂のカプセル
１′は、基材３にほぼ付着状態であり、蓄熱材２
のみが収縮してカプセル１′と蓄熱材２との間に
空隙４′が形成される。このようにすれば、蓄熱
材の収縮時にカプセルがその周囲の基材を引張つ
て建材中に応力を生じさせると言う問題が解消さ
れる。 In this example, as mentioned above, the thermoplastic resin used is one that does not easily adhere (including "does not adhere") to at least one of the heat storage material 2 and the base material 3, and therefore, the latent heat storage material In the case of contraction (heat dissipation), for example, as shown in FIG. 2a, the thermoplastic resin capsule 1 contracts together with the heat storage material 2, and a gap 4 is formed between it and the base material 3, As can be seen, the thermoplastic resin capsule 1' is almost adhered to the base material 3, and the heat storage material 2
Only the capsule 1' contracts, and a gap 4' is formed between the capsule 1' and the heat storage material 2. This solves the problem of the capsule pulling the surrounding base material and creating stress in the building material when the heat storage material contracts.
相転移をともなう潜熱蓄熱材としては、無機水
和塩系のもの、パラフイン系のものなどのように
固・液相転移（融解熱）を利用するもの、多価ア
ルコール、たとえば、ペンタエリスリトール、ネ
オペンチルグリコール等などのように固・固相転
移（遷移熱）を利用するものなどが、蓄熱建材の
用いられる温度域に応じて選択的に用いられる。 Latent heat storage materials that involve a phase transition include those that utilize solid-liquid phase transition (heat of fusion), such as inorganic hydrated salts and paraffin-based materials, and polyhydric alcohols such as pentaerythritol and neonatal Those that utilize solid-solid phase transition (transition heat), such as pentyl glycol, are selectively used depending on the temperature range in which the heat storage building material is used.
コーテイング材としては、化学的に安定で、か
つ、基材や蓄熱材と付着しにくい熱可塑性樹脂、
すなわち、ポリエチレンやポリプロピレンなどが
好ましい。 The coating material is a thermoplastic resin that is chemically stable and does not easily adhere to the base material or heat storage material.
That is, polyethylene, polypropylene, etc. are preferable.
なお、コーテイング法としては、通常、潜熱蓄
熱材粒子表面にコーテイング材を吹き付けてカプ
セル化する方法が用いられるが、これに限定され
ない。 Note that, as the coating method, a method is usually used in which a coating material is sprayed onto the surface of the particles of the latent heat storage material to encapsulate the particles, but the method is not limited thereto.
この発明にかかる蓄熱建材の製法は、上記実施
例に限らない。要するに、少なくとも基材の硬化
時において蓄熱カプセルが相転移温度以上の温度
に保たれ、膨張（蓄熱）した状態を保つているよ
うにすればよいのである。なお、基材中には、蓄
熱カプセル以外の骨材を混入するようにしても構
わない。 The method for manufacturing the heat storage building material according to the present invention is not limited to the above embodiments. In short, the heat storage capsule should be kept at a temperature higher than the phase transition temperature and maintained in an expanded (heat storage) state at least when the base material is cured. Note that aggregates other than the heat storage capsule may be mixed into the base material.
以下に、この発明の具体的実施例を比較例と併
せて説明する。 Specific examples of the present invention will be described below along with comparative examples.
セメントモルタル中に、蓄熱カプセルとして粒
状パラフインのコーテイングカプセル（融点47
℃）を20重量％、30重量％および40重量％の混入
率で分散させて、60℃で24時間養生硬化したもの
を実施例とし、室温で十分に養生硬化したものを
比較例とした。得られた蓄熱建材を70℃←→30℃の
寒熱繰返し試験に掛けたところ、比較例は蓄熱カ
プセル20％混入品以外はすべてクラツクが発生し
たのに対し、実施例はすべてクラツク発生なしで
あつた。 Coating capsules of granular paraffin (melting point 47
℃) was dispersed at a mixing rate of 20%, 30%, and 40% by weight and cured at 60℃ for 24 hours as an example, and a sample that was sufficiently cured and cured at room temperature as a comparative example. When the obtained heat storage building materials were subjected to a cold/heat cycle test at 70℃←→30℃, cracks occurred in all of the comparative examples except for the product containing 20% heat storage capsules, whereas all of the examples showed no cracks. Ta.
この発明の蓄熱建材の製法は、以上のように構
成されているので、そり、たわみ、クラツクなど
が起こらない安定した蓄熱建材を得ることができ
る。
Since the method for producing a heat storage building material of the present invention is configured as described above, it is possible to obtain a stable heat storage building material that does not cause warping, deflection, cracking, etc.
第１図はこの発明の蓄熱建材の製法を表す模式
図、第２図ａ，ｂはその収縮状態を表す模式図、
第３図ａ，ｂは従来の蓄熱建材の蓄熱時、放熱時
の状態を表す模式図である。
１，１′……熱可塑性樹脂、２……潜熱蓄熱材、
３……基材、Ａ……蓄熱建材、Ｂ，B′……蓄熱
カプセル。
Fig. 1 is a schematic diagram showing the manufacturing method of the heat storage building material of the present invention, Fig. 2 a and b are schematic diagrams showing its contracted state,
FIGS. 3a and 3b are schematic diagrams showing the states of conventional heat storage building materials during heat storage and heat radiation. 1,1'...Thermoplastic resin, 2...Latent heat storage material,
3... Base material, A... Heat storage building material, B, B'... Heat storage capsule.
Claims (1)
の蓄熱カプセルは相転移にともなう潜熱を利用す
る潜熱蓄熱材が熱可塑性樹脂で被覆されてなるも
のである蓄熱建材を得るにあたり、前記基材の硬
化に至るまでの系において、少なくとも硬化時の
系の温度を前記潜熱蓄熱材の相転移温度以上に保
持することを特徴とする蓄熱建材の製法。 ２ 熱可塑性樹脂が基材および潜熱蓄熱材の少な
くとも一方に付着しにくいものである特許請求の
範囲第１項記載の蓄熱建材の製法。[Claims] 1. To obtain a heat storage building material in which heat storage capsules are dispersed in a base material, and the heat storage capsules are made by covering a latent heat storage material that utilizes latent heat accompanying phase transition with a thermoplastic resin. A method for producing a heat storage building material, characterized in that, in the system up to the curing of the base material, at least the temperature of the system at the time of curing is maintained at a temperature higher than the phase transition temperature of the latent heat storage material. 2. The method for producing a heat storage building material according to claim 1, wherein the thermoplastic resin is difficult to adhere to at least one of the base material and the latent heat storage material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18800385A JPS6252150A (en) | 1985-08-27 | 1985-08-27 | Manufacture of heat regenerative construction material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18800385A JPS6252150A (en) | 1985-08-27 | 1985-08-27 | Manufacture of heat regenerative construction material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6252150A JPS6252150A (en) | 1987-03-06 |
| JPH0244266B2 true JPH0244266B2 (en) | 1990-10-03 |
Family
ID=16215938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18800385A Granted JPS6252150A (en) | 1985-08-27 | 1985-08-27 | Manufacture of heat regenerative construction material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6252150A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130946A (en) * | 1983-01-17 | 1984-07-27 | 株式会社クボタ | Heat storing building material and production thereof |
| JPS59208393A (en) * | 1983-05-12 | 1984-11-26 | Sanden Corp | Regenerative capsule |
-
1985
- 1985-08-27 JP JP18800385A patent/JPS6252150A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130946A (en) * | 1983-01-17 | 1984-07-27 | 株式会社クボタ | Heat storing building material and production thereof |
| JPS59208393A (en) * | 1983-05-12 | 1984-11-26 | Sanden Corp | Regenerative capsule |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6252150A (en) | 1987-03-06 |
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